| What: /sys/bus/wmi/devices/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_supported_type |
| Date: Apr 2021 |
| KernelVersion: 5.13 |
| Contact: "<perry.yuan@dell.com>" |
| Description: |
| Display which dell hardware level privacy devices are supported |
| “Dell Privacy” is a set of HW, FW, and SW features to enhance |
| Dell’s commitment to platform privacy for MIC, Camera, and |
| ePrivacy screens. |
| The supported hardware privacy devices are: |
| |
| Attributes: |
| Microphone Mute: |
| Identifies the local microphone can be muted by hardware, no applications |
| is available to capture system mic sound |
| |
| Camera Shutter: |
| Identifies camera shutter controlled by hardware, which is a micromechanical |
| shutter assembly that is built onto the camera module to block capturing images |
| from outside the laptop |
| |
| Values: |
| |
| supported: |
| The privacy device is supported by this system |
| |
| unsupported: |
| The privacy device is not supported on this system |
| |
| For example to check which privacy devices are supported:: |
| |
| # cat /sys/bus/wmi/drivers/dell-privacy/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_supported_type |
| [Microphone Mute] [supported] |
| [Camera Shutter] [supported] |
| [ePrivacy Screen] [unsupported] |
| |
| What: /sys/bus/wmi/devices/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_current_state |
| Date: Apr 2021 |
| KernelVersion: 5.13 |
| Contact: "<perry.yuan@dell.com>" |
| Description: |
| Allow user space to check current dell privacy device state. |
| Describes the Device State class exposed by BIOS which can be |
| consumed by various applications interested in knowing the Privacy |
| feature capabilities |
| |
| Attributes: |
| Microphone: |
| Identifies the local microphone can be muted by hardware, no applications |
| is available to capture system mic sound |
| |
| Camera Shutter: |
| Identifies camera shutter controlled by hardware, which is a micromechanical |
| shutter assembly that is built onto the camera module to block capturing images |
| from outside the laptop |
| |
| Values: |
| muted: |
| Identifies the privacy device is turned off |
| and cannot send stream to OS applications |
| |
| unmuted: |
| Identifies the privacy device is turned on, |
| audio or camera driver can get stream from mic |
| and camera module to OS applications |
| |
| For example to check all supported current privacy device states:: |
| |
| # cat /sys/bus/wmi/drivers/dell-privacy/6932965F-1671-4CEB-B988-D3AB0A901919/dell_privacy_current_state |
| [Microphone] [unmuted] |
| [Camera Shutter] [unmuted] |
